We divide 717819 by 72
The aim is to understand the frequency of 72 in 717819.

Step 1:
The number 72 fits into 7 0 times, leaving a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Take the next digit (1) from the dividend and append it to 7, then repeat: 71 / 72

Going ahead to step 2:
The number 72 fits into 71 0 times, leaving a remainder of 71.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 71 and we're left with 71.
Fetch the next digit (7) from the dividend, attach it to 71 and continue: 717 / 72

Going ahead to step 3:
72 goes into 717 9 times with a remainder of 69.
Use 9 as the next digit of our solution. 
Result so far: 9.0
Subtracting 648 from 717 leaves us with 69.
Include the next digit (8) from the dividend after 69, then repeat: 698 / 72

Advancing to step 4:
If we divide 698 by 72, we get 9 and a remainder of 50.
The number 9 becomes the next digit in our result. 
Result so far: 99.0
Subtracting 648 from 698 leaves us with 50.
Fetch the next digit (1) from the dividend, attach it to 50 and continue: 501 / 72

Let's proceed to step 5:
When dividing 501 by 72, we get 6 with a remainder of 69.
Record the quotient 6 as the next digit in the result. 
Result so far: 996.0
If we subtract 432 from 501, we get 69.
Bring next digit (9) of the dividend behind the 69 and repeat the process: 699 / 72

Step 6:
If we divide 699 by 72, we get 9 and a remainder of 51.
The number 9 becomes the next digit in our result. 
Result so far: 9969.0
Deduct 648 from 699 and we're left with 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

On to step 7:
72 goes into 510 7 times with a remainder of 6.
Record the quotient 7 as the next digit in the result. 
Result so far: 9969.7
Subtracting 504 from 510 leaves us with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 8:
When dividing 60 by 72, we get 0 with a remainder of 60.
Record the quotient 0 as the next digit in the result. 
Result so far: 9969.7
The remainder is 60 after subtracting 0 from 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Step 9:
If we divide 600 by 72, we get 8 and a remainder of 24.
Record the quotient 8 as the next digit in the result. 
Result so far: 9969.708
If we subtract 576 from 600, we get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Moving on to step 10:
240 divided by 72 is 3 with a remainder of 24.
Write down 3 as next digit of the result. 
Result so far: 9969.7083
Subtract 216 from 240 to get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Let's proceed to step 11:
72 can be fit into 240 3 times, resulting in a remainder of 24.
Put 3 as the next digit of the answer. 
Result so far: 9969.70833
Subtract 216 from 240 to get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

After the division, we end up with 9969.70833 and a remainder of 2.4e-05.